Tube-expander



(Model.) W. SCHOBNDELEN, W. KLEIN 8v A. SOHOENDEL'EN.

TUBE EXPANDER.

Patented Oct. 12, 1886.

VBNTOR i 0.5M BY aum/WVG, ATTORNEYS.

.N TN Rl mv l w. P@ w .I m M. wu W UNITED STATES PATENT EEICEC VILLIAMSCHOENDELEN, VILLIAM KLEIN, AND AUGUST SCHOENDELEN,

` OF DAVENPORT, `[O\VA.

TUBE-EXPANDER.

SPECIFICATION forming part of Letters Patent No 350,701, dates". October12, 1886.

(Model.)

To all whom it may concern:

Be it known that we, WILLIAM Senonnnn- LEN, WILLIAM KLEIN, and AUGUsTSeHoEN- DELEN, ot' Davenport, in the county of Scott and State of Iowa,have invented a new and useful Improvement in Bang-Bush Expanders, ofwhich the following is a specification, rei erence being had to theannexed drawings, forming a part thereof, in whichd Figure l is alongitudinal section. Fig. 2 is a transverse section taken on line x .frin Fig. 1. Fig. 8 is a transverse section taken on line y yin Fig. l..Fig. 4 is a transverse section of a part of a barrel-stave and t-hebung-bush in position in the stave.

Similar letters ot' reference indicate correspending parts in thedifferent figures oi' the drawings.

The object of' our invention is to provide a simple and easlymanipulatedtool for expanding bushes in the bung-holes of barrels and kegs, toretain the bushes in their place, and also to tighten them should theybeeomeleaky after along use.

Our invention consists in the construction and arrangements of parts, aswill be hereinafter fully described and claimed.

In the circular head A of the vyoke B is jonrnaled a sleeve, D, in thesides ot' which, at equally-distant points, are formed mortises a, forreceiving and retaining rollers C. The sides ot' the mortises a areconvergent, and the rollers C, being larger than the outer ends of themortises, are retained loosely in the mor tises. An annular cap, E,secured to the end of the sleeve D, retains the rollers C in themortises a. The end of the sleeve D, which projects into the yoke B, isprovided with a eollar, F, between which and the circular end of theyoke are placed two washers, b and b, between which are placed convexrollers or balls c. The rollers@ retain their position bya hoop, d,which surrounds the series of rollers and the washers b and b. The end eof the yoke B is threaded internally to receive the threaded portion ofa tapering spindle, G. The tapering spindle G extends through the sleeveD and passes between the rollers C, and the opposite end of the taperingspindle G receives a handle or wrench, H, by which itis turned.

Upon the threaded portion of the spindle G,

between the yokeB and thehandle H, is placed a Split internally-threadedring, f, which may be tightened upon the threaded part of the spindle bya tangent screw, g, passingthrough one of a pair ot' ears formed on thesplit ring f and into the other ear.

Upon the Al'ace of-the circular end A ofthe yoke Bis formed a toothedflange, 7i, which engages the wood of the kegl or barrel in connectionwith which the expander isto be used, and prevents the yoke B fromturning, while the spindle G is revolved by means ofthe handle H. Therollers C are slightly rounded at one end to facilitate their entranceinto the bung-bush, and are made approximately hemispherical at theopposite end, to give the desired form to the bushes as they areforcedontward by the spindle.

In applying a bung-bush to a keg or barrel by means ot' our improveddevice, the bush is first inserted in the bung-hole ot' the keg orbarrel, when the end of the sleeve D which projects beyond the laceofthe circular end A ot the yoke B is inserted in the bush, as shown inFig. l, the tapering spindle G having been withdrawn to allow therollers C to retreat within the sleeve D, to admit of inserting it-inthe bush. By pressing the yoke B forward againstthe stave in which thebush isinserted, the teeth L enter a short distance into the wood andoffer resistance to the turning of the yoke B, permitting the spindle tobe turned. The turning of the spindle G by virtue of the engagement ol'the threaded portion thereof with the internally-thrcaded end c ot' theyoke, advances it so that the portion passing between the rollers C isof a constantly-increasing diameter. By this means the rollers C areforced outward radially into contact with the bush, and. their Contactwith the smooth surl'aee of the tapering portion of the spindle G causesthem to revolve, while they are at the same time being forced outwardlaterally by the ta pering spindle. The rolling contact and the outwardpressure of the rollers expands the inner end ol' the bush, as shown inFig. Il. The ring F is adjusted upon the threaded portion of the spindleG, so as to limit the forward movement of thel spindle tothe amountnecessary to expand the bush to the required extent. After the bush isexpanded a reverse motion ICO of the handle withdraws the tapering partof the spindle from between the rollers more or less, allowing therollers to retreat into the mort-ises a, when the expander may beremoved from the keg` orbarrel and applied to another.

Bung-bushes may be inserted by means of our improved expander in a muchlmore satisfactory way than by the usual method of screw'- ing them in,and when. a bush applied by means of our expander after long use or byaccident becomes leaky, an application of the expander will enlarge it,so that it again becomes tight. Having thus described our invention,what We claimas new, and desire to secure by Letters Patent, is- 1. Thecombination, with the yoke B, having one end, e, provided with alongitudinal screw-threaded aperture, and a circular head, A, at theopposite end, provided with an aperture in alignment with that in theend e, of sleeve D, projecting through the head Aiuto the yoke andhaving a longitudinal aperture, the rollers C, aud an external shoulderabutting againstthe'outer face'of the head A, the collar F on the sleevewithin the yoke, a ring, d, between 2 5 the collar F and the inner faceof the head A, a series of loose rollers or balls, c, in the spacebetween the collar, ring, and head, and the tapering shaft G,screw-threaded to engage the end e, substantially as set forth.

42. The combination, With the yoke B, having the circular head A at oneend formed with a series of penetrating teeth on its forward edge, andthe internally-threaded opposite end, e, of the shouldered sleeve D,extending through the circular head and provided with the rollers C andthe retaining-collar F, and the tapering threaded shaft G, substantiallyas set forth.

WILLIAM soIIoENDELnN.v WILLIAM KLEIN. AUGUST scHoENDELEN.

Witnesses:

WM. HoERsoH, THEO. KLAHN.

